Fan attachment for sewing-machines.



R. G. LAN'DERS.

FAN ATTACHMENT FOR SEWING MACHINES.

APPLIOATIOH FILED NOV. 29, 1911.

1,027,259. 1 -PatentedMay21,1912.

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Ronn -ire. LANDEas, or LEBANON, Kansas.

FAN ATTACHMENT FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented May 21, 1912.

Application filed November 29, 1911. Serial No. 663,006.

To all whom it may concern:

Be it known that I, ROBERT C. LANDERS, a citizen of the United States, residing at Lebanon, in the county of Smith and State of Kansas, have invented new and useful Improvements in Fan Attachments for Sewing-Machines, of which the following is a specification.

'This invention relates to fan attachments for sewing machines, and has for an object to provide an attachment of this kind which can be readily applied to the usual hand wheel upon the needle bar shaft of the machine to be operated thereby and thus create a circulation of air which will be found most advantageous where machines are used in factories or like places.

Another object of the invention is to provide a fan attachment that can be readily attached to the stop motion screw in the center of the hand wheel, without necessitating changes in the construction of the screw.

In the drawing, forming a portion of this specification and in which like numerals of reference indicate similar part-s in the sev-.

' hand wheel thereof. Fig. 2 is a side view.

of the fan detached from the machine. Fig. 3 is a section on an enlarged scale through a portion of the wheel showing the manner of connecting the hub of the fan thereto.

The sewing machine 1 herein shown is of a construction wherein the hand wheel 2 is mounted in the usual manner to the needle bar shaft, the latter including the stop motion screw 3.

- The fan attachment comprises an outer rim 4 and an inner. collar 5. These parts i and 5 are arranged in concentric relation relatively and the'inner collar is of a size which will snugly receive the head of the screw 3, as shown in Fig. 3 of the drawing.

Suitable vanes or blades 6 connect the rim 4 with the collar 5 and they may be secured which the outer ends of the blades or vanes 6 are extended. By extending the outer vided at its opposite sides with flexible ears 8 which are designed to be bent down against the opposite sides of the head of the screw 8, whereby the fan can be immovably mounted upon the wheel 2 so as to rotate with the direction of the operator of the machine- The fan is of a comparatively simple construction, it maybe manufactured at a minimum cost and applied to machines of standard construction without necessitating alterations to any parts thereof.

In the modified form of the invention shown in Fig. 4, the fan includes a rim 10 and a collar 11. The collar is provided with radial sockets 12 and the blades or vanes 13 are provided with reduced inner ends 1 1 which are loosely fitted in the sockets. The outer ends of the blades or vanes are soldered or otherwise fixedly secured to the rim 10. From this construction it will be seen that the band 11 can be readily removed from the vanes or blades of the fan so as to permit a band of any required internal diameter to be associated therewith and thereby permit the fan to be adjusted to stopmotion screws of different sizes or configuratron.

I claim:

1. A fan attachment for sewing machines comprising a rim provided with radially arranged slots, a collar disposed in concentric relation with the rim, and adapted for engagement with the stop-motion screw of the hand wheel of a machine, blades connecting gagement with the stop-motion screw of the In testimony whereof I aflix my signature hand Wheel of a machine, blades connecting in presence of two Witnesses. the collar to the rim, and tongues formed on the opposite peripheral edges of the col- ROBERT LANDERS' lar and adapted to be bent into engagement Witnesses: With the opposite side faces of the screw to JOSEPH PURsIFULL,

hold the fan immovably mounted thereon. PERCY R. ATKINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

